[A]
Oxeas 260 - 300 μm.
Sigmas of 2 size classes. |
| | Xestospongia edapha
(de Laubenfels, 1930) |
Sponge:
Massive (to 20 cm thick) or encrusting to 2 cm thick.
Consistency: friable to stony hard.
Surface: superficially smooth.
Oscula: oval round, 1 mm in diameter.
Color: Alive: Buff-white, lavender.
Spicules: Megascleres:
(1) Oxeas:
260 -275- 300 um.
x 12 -13- 15 um.
Warning: Undefined array key 4 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 129
Warning: Undefined array key 1 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 131
Microscleres:
Warning: Undefined array key 1 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 195
(1) Sigma:
46 -52-81- 118 um.
Warning: Undefined array key 3 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 212
Warning: Undefined array key 1 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 195
(2) Sigma:
75 -87-96- 118 um.
Warning: Undefined array key 3 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 212
Warning: Undefined array key 2 in /home/thackerdb2/public_html/casponges/programfiles/WCS_Key4.php on line 214
Skeleton:
Ectosome with reticulation near the surface provided with much spongin.
Choanosomal skeleton with a greater abundance of confused spicules but a basic isodictyal pattern remains. Vertical paucispicular tracts with cross spicules oriented horizontally and diagonally.
Distribution: Southern, Northern California.
Depth: Low intertidal to subtidal.
Note: Was Sigmadocia edaphus. De Weerdt, 2002, tentatively places Sigmadocia in Haliclona (Gellius). This species is now considered to be in the genus Xestospongia.
|
|
Oxeas < 280 μm.
Sigmas of 1 size class.
|
|
|